Env. Canada, European, American side by side around Delta and nearby towns.Live rain radar →
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Next 14 hours
consensus of the three models
7-day forecast
where the models agree, and where they split
Delta, 02 is at its warmest in Jul (average highs near 23°C) and coldest in Jan (lows around 2°C), with roughly 1380 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for Delta right now, and see exactly where they disagree.
Delta climate by month
average daytime high and overnight low across a typical year
Jan
6°
2°
Feb
7°
2°
Mar
9°
3°
Apr
11°
5°
May
17°
9°
Jun
18°
11°
Jul
23°
14°
Aug
22°
14°
Sep
19°
12°
Oct
14°
8°
Nov
9°
4°
Dec
8°
4°
Common questions
What's the weather in Delta today?
On this page we show what Env. Canada, European, American each forecast for Delta today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Delta today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for Delta and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Delta?
No single model is always right. Env. Canada, European, American each run their own physics, so we line all three up: when they agree the Delta forecast is reliable, and when they split you should expect surprises. See our tested CA accuracy scoreboard for how the models compare.
What is the warmest month in Delta?
Jul is typically the warmest month in Delta, with average highs around 23°C.
How cold does Delta get?
The coldest month in Delta is Jan, when overnight lows average about 2°C.
How much rain does Delta get?
Delta sees roughly 1380 mm of precipitation a year, with Dec usually the wettest month.
The forecasts Canadians check
Environment Canada runs the national GEM model as open data, so it sits right in the comparison above. The Weather Network and AccuWeather keep theirs closed, so we link you to them.